CN112095521A - Drawing type movable guardrail for central separation belt of highway - Google Patents
Drawing type movable guardrail for central separation belt of highway Download PDFInfo
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- CN112095521A CN112095521A CN202011068597.5A CN202011068597A CN112095521A CN 112095521 A CN112095521 A CN 112095521A CN 202011068597 A CN202011068597 A CN 202011068597A CN 112095521 A CN112095521 A CN 112095521A
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- 238000000926 separation method Methods 0.000 title claims abstract description 31
- 238000009434 installation Methods 0.000 claims abstract description 7
- 230000001681 protective effect Effects 0.000 abstract description 5
- 238000000034 method Methods 0.000 description 4
- 235000009537 plain noodles Nutrition 0.000 description 4
- 229910000831 Steel Inorganic materials 0.000 description 2
- 230000004888 barrier function Effects 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 230000005484 gravity Effects 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 239000000178 monomer Substances 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 230000000712 assembly Effects 0.000 description 1
- 238000000429 assembly Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000003116 impacting effect Effects 0.000 description 1
- 238000011900 installation process Methods 0.000 description 1
- 230000008092 positive effect Effects 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
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Classifications
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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01F—ADDITIONAL WORK, SUCH AS EQUIPPING ROADS OR THE CONSTRUCTION OF PLATFORMS, HELICOPTER LANDING STAGES, SIGNS, SNOW FENCES, OR THE LIKE
- E01F15/00—Safety arrangements for slowing, redirecting or stopping errant vehicles, e.g. guard posts or bollards; Arrangements for reducing damage to roadside structures due to vehicular impact
- E01F15/02—Continuous barriers extending along roads or between traffic lanes
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01F—ADDITIONAL WORK, SUCH AS EQUIPPING ROADS OR THE CONSTRUCTION OF PLATFORMS, HELICOPTER LANDING STAGES, SIGNS, SNOW FENCES, OR THE LIKE
- E01F15/00—Safety arrangements for slowing, redirecting or stopping errant vehicles, e.g. guard posts or bollards; Arrangements for reducing damage to roadside structures due to vehicular impact
- E01F15/02—Continuous barriers extending along roads or between traffic lanes
- E01F15/12—Continuous barriers extending along roads or between traffic lanes and having means for providing occasional passage, e.g. for emergency vehicles
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- Engineering & Computer Science (AREA)
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- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Refuge Islands, Traffic Blockers, Or Guard Fence (AREA)
Abstract
The invention relates to a drawing type movable guardrail for a central separation belt of a highway, which comprises a gear assembly, a support frame, two beam groups and a plurality of stand columns, wherein the gear assembly is arranged on the support frame; a plurality of stand columns are arranged at the opening of the central separation belt at intervals, and the lower end of each stand column is inserted into a respective embedded sleeve; the two beam groups are symmetrically distributed at two ends of the upright post at the middle position of the opening of the central separation belt, one end of each beam group is inserted on the corresponding upright post, and the other end of each beam group extends to the central green belt, so that the two beam groups and all the upright posts form a guardrail structure together; and the concrete guardrails at the two ends of the opening of the central separation belt are respectively provided with a gear assembly and a support frame, each gear assembly provides power for the sliding of the corresponding beam group, and the support frame provides support for the sliding of the beam group. The guardrail integrates the upright post plug installation and the crossbeam pull installation, and the upright post plug installation enables the protective capability of the guardrail to be stronger; the crossbeam cartridge all has the connection with each stand in the sleeve of each stand, increases the protective capacities, easy to assemble moreover and dismantles.
Description
Technical Field
The invention belongs to the technical field of highway traffic safety facilities, and particularly relates to a pull-type movable guardrail for a central separation zone of a highway.
Background
The opening of the central separation belt of the expressway can meet the reversing driving requirements of rescue and maintenance vehicles, and a movable guardrail is required to be arranged at the opening of the central separation belt to avoid other vehicles from randomly passing through. The movable guardrail has protection capability and moving convenience, can ensure that a vehicle impacting the movable guardrail cannot pass through the guardrail to collide with the vehicle on a lane beside the movable guardrail when the opening is closed, and can meet the requirements of rescue and maintenance when the opening is opened.
The movable guardrail that the concrete guardrail monomer that both ends have pre-buried connecting plate constitutes though possess better protective capacities, but concrete guardrail monomer weight is big, removes the convenience poor, and movable guardrail is difficult to accomodate, will occupy road resource after the opening is opened.
The patent with application number 201420325133.1 discloses a highway stress tube anticollision movable guardrail, and this movable guardrail has the traction fixing device to pull, and the below of movable guardrail unit has the pulley, increases movable guardrail's flexibility, and the crashworthiness is relatively poor, and movable guardrail after opening moreover can occupy the road resource.
Disclosure of Invention
Aiming at the defects of the prior art, the invention aims to solve the technical problem of providing a pull type movable guardrail for a central separation zone of a highway.
The technical scheme adopted by the invention for solving the technical problems is as follows:
a pull type movable guardrail for a central separation belt of a highway is characterized by comprising a gear assembly, a support frame, two cross beam groups and a plurality of upright posts;
a plurality of stand columns are arranged at the opening of the central separation belt at intervals, and the lower end of each stand column is inserted into a respective embedded sleeve; the two beam groups are symmetrically distributed at two ends of the upright post at the middle position of the opening of the central separation belt, one end of each beam group is inserted on the corresponding upright post, and the other end of each beam group extends to the central green belt, so that the two beam groups and all the upright posts form a guardrail structure together;
the concrete guardrails at two ends of the opening of the central separation belt are respectively provided with a gear assembly and a support frame, each gear assembly provides power for the sliding of each beam group, and the support frame provides support for the sliding of the beam groups.
The beam group comprises a pulley assembly, at least one sawtooth beam layer and at least one smooth beam layer; each sawtooth cross beam layer comprises two sawtooth cross beams which are arranged side by side, each sawtooth cross beam is formed by sequentially connecting a plurality of sawtooth cross beam units, and a rack is arranged on the outer wall of each sawtooth cross beam unit along the axial direction; each smooth surface beam layer comprises two parallel smooth surface beams, and each smooth surface beam is formed by sequentially connecting a plurality of smooth surface beam units; the two crossbeams of each crossbeam layer are respectively positioned at the two sides of the upright post; the sawtooth cross beam and the smooth cross beam on the same side of the upright post are fixedly connected with one end of the concrete guardrail through long screws to form a whole;
a pulley assembly is arranged at one end, close to the central green belt, of the cross beam layer positioned at the lowest part of the upright post; the pulley component comprises a U-shaped connecting plate, a threaded pipe and a universal wheel; two ends of the U-shaped connecting plate are fixedly connected with the two cross beams; the screwed pipe is vertically fixed in the bottom of U type connecting plate, and the link of universal wheel and the lower extreme threaded connection of screwed pipe.
The stand is equipped with a plurality of sleeve layers along the direction of height, and every sleeve layer contains two side by side sleeves, and two sleeves are located the both sides of stand respectively, and telescopic lower part is equipped with the fluting that the lower tip that is used for connecting the screw passes through.
The gear assembly comprises an I-shaped frame, a gear and a handle; two ends of the upper part of the I-shaped frame are fixedly connected with two sides of the concrete guardrail respectively, two ends of the lower part of the I-shaped frame are rotatably provided with gears respectively, and the two gears are meshed with racks on respective sawtooth cross beams; a handle is fixed on the end surface of each gear.
The support frame is composed of a guide rail plate and a plurality of U-shaped pieces, two end lugs of the U-shaped pieces are fixedly connected with the concrete guardrail, and openings of the U-shaped pieces are upward; the guide rail plate is arranged in the middle of all the U-shaped parts, and a sliding groove is arranged on the guide rail plate.
The installation range of the upright columns is larger than the opening length of the central division belt specified in the standard specification, the upright columns at two ends of the opening of the central division belt are densely distributed, and the upright columns in the middle of the opening of the central division belt are sparsely distributed.
Compared with the prior art, the invention has the advantages and positive effects that:
1. the movable guardrail integrating upright post plug-in mounting and crossbeam pull-out mounting is designed, and the upright post plug-in mounting enables the guardrail to have stronger protection capability; the cross beam is inserted into the sleeve of each stand column and connected with each stand column, so that the protection capability is improved, and the mounting and the dismounting are convenient; the opened beam moves to the central green belt, and road resources are not occupied, so that the invention has stronger protection capability and better storability.
2. According to the movable guardrail opening device, the gear assembly is used for providing power for pulling the cross beam group, and each cross beam can be driven to move only by rotating the handle on the gear in the movable guardrail opening process, so that the operation difficulty of opening the movable guardrail is reduced, the manpower input is saved, and the movable guardrail has higher moving convenience.
3. According to the invention, the supporting frame and the pulley assemblies are used for supporting the cross beam, so that the cross beam is prevented from being suspended at one end of the central green belt, the cross beam is prevented from inclining due to the action of gravity, the arrangement of the pulleys is more convenient for drawing and pulling the cross beam, and the labor is saved.
4. The cross beams are all made of round steel pipes, so that more energy can be absorbed in vehicle collision, and the automobile bumper has stronger protection capability; through the nut of adjusting gear both sides, can make the gear all the time with the rack toothing on the sawtooth crossbeam, can reduce construction error to this application practical application's influence.
Drawings
FIG. 1 is a schematic view of the overall structure of the present invention;
FIG. 2 is a schematic view of the connection of the beam set to the column of the present invention;
FIG. 3 is a schematic structural view of a sawtooth beam of the present invention;
fig. 4 is a schematic view of the construction of the sheave assembly of the present invention;
FIG. 5 is a schematic structural view of the column of the present invention;
FIG. 6 is a schematic structural view of the gear assembly of the present invention;
FIG. 7 is a side view of the present invention installed with a concrete barrier;
FIG. 8 is a schematic structural view of the stand of the present invention;
FIG. 9 is a front view of the removable barricade of the present invention installed at the opening of the central divider;
in the figure: 1. a column; 2. pre-burying a sleeve; 3. a concrete guardrail; 4. a beam set; 5. a gear assembly; 6. a support frame; 11. a sleeve; 101. grooving; 41. a sawtooth cross beam; 42. a smooth surface beam; 43. a U-shaped connecting plate; 44. a threaded pipe; 45. a universal wheel; 46. a long screw; 401. a rack; 51. an I-shaped frame; 52. a gear; 53. a handle; 61. a guide rail plate; 62. and a U-shaped part.
Detailed Description
The following detailed description of the embodiments of the present invention is provided in conjunction with the accompanying drawings and the specific embodiments, which are not intended to limit the scope of the present invention.
The invention provides a pull-out movable guardrail (a guardrail for short, see fig. 1-9) for a central separation zone of a highway, which comprises a gear assembly, a support frame, two beam groups 4 and a plurality of upright posts 1;
the multiple upright columns 1 are arranged at the opening of the central separation belt at intervals, the lower end of each upright column 1 is inserted into a respective embedded sleeve 2, the embedded sleeves 2 are embedded underground, and the depth of the upright columns 1 inserted into the embedded sleeves 2 is 1/4-1/3 of the height of the upright columns 1;
the two beam groups 4 are symmetrically distributed at two ends of the upright post 1 at the middle position of the opening of the central separation belt, one end of each beam group is inserted into the upright post 1 at the middle position of the opening of the central separation belt, and the other end of each beam group extends to the central green belt (when the device is used, the concrete guardrails of the central green belt at the end part of the opening of the central separation belt are removed, so that the port of the central green belt is opened, and the concrete guardrails at two sides of the central green belt are reserved to provide mounting platforms for the support frames 6), so that the two beam groups 4 and all the upright posts 1 form a guardrail structure together;
install gear assembly 5 and support frame 6 on the concrete barrier 3 at central separation area opening both ends respectively, every gear assembly 5 slides for respective crossbeam group 4 and provides power, and support frame 6 provides the support for the slip of crossbeam group 4, prevents that each crossbeam of crossbeam group 4 from because the action of gravity slope, ensures that crossbeam group 4 slides smoothly.
The beam group 4 comprises a pulley assembly, at least one sawtooth beam layer (one in this embodiment) and at least one smooth beam layer (two in this embodiment); each sawtooth cross beam layer comprises two sawtooth cross beams 41 which are arranged side by side, each sawtooth cross beam is formed by sequentially connecting a plurality of sawtooth cross beam units, the tail end of the front sawtooth cross beam unit is connected with the head end of the rear sawtooth cross beam unit through a connecting screw and a connecting pipe, the connecting pipe is inserted into the two adjacent sawtooth cross beam units, a rack 401 is arranged on the side surface of the outer wall of each sawtooth cross beam unit along the axial direction, the tooth tip of the rack 401 faces upwards, and the rack and a gear can be meshed in the vertical direction; each smooth surface beam layer comprises two parallel smooth surface beams 42, each smooth surface beam is formed by sequentially connecting a plurality of smooth surface beam units, the tail end of the front smooth surface beam unit is connected with the head end of the rear smooth surface beam unit through a connecting screw and a connecting pipe, and the connecting pipe is inserted in the two adjacent smooth surface beam units; the two crossbeams of each crossbeam layer are respectively positioned at the left side and the right side of the upright post 1; the sawtooth crossbeam 41 and the plain noodles crossbeam 42 that stand 1 was same one side are close to the one end of concrete guardrail and link firmly through long screw 46 and form wholly, and long screw 46 vertically runs through sawtooth crossbeam 41 and plain noodles crossbeam 42 to through bolt locking, realize stand 1 with the sawtooth crossbeam 41 and the plain noodles crossbeam 42 synchronous motion of one side, make things convenient for the pull, the mounting means is simple moreover.
A pulley assembly is arranged at one end, close to the central green belt, of the cross beam layer positioned at the lowest layer; each pulley assembly comprises a U-shaped connecting plate 43, a threaded pipe 44 and a universal wheel 45; the U-shaped connecting plate 43 is positioned between the two cross beams, and two ends of the U-shaped connecting plate are fixedly connected with the two cross beams; the vertical bottom of fixing at U type connecting plate 43 of screwed pipe 44, the lower extreme threaded connection of the link of universal wheel 45 and screwed pipe 44 can adjust the degree of depth that the universal wheel 45 link inserted in screwed pipe 44, and then adjusts the height of universal wheel 45, guarantees that universal wheel 45 can slide on the guide rail board of support frame 6, makes things convenient for the pull crossbeam.
The upright post 1 is provided with a plurality of sleeve layers along the height direction, and the number of the sleeve layers is equal to the sum of the sawtooth cross beam layer and the smooth surface cross beam layer; each sleeve layer comprises two side-by-side sleeves 11, the two side-by-side sleeves 11 are respectively positioned on two sides of the upright post 1, the axial direction of each sleeve 11 is along the length direction of the guardrail, the lower part of each sleeve 11 is provided with a slot 101 for the lower end part of a connecting screw to pass through, and the width of each slot 101 is larger than the diameter of a nut on the connecting screw; the crossbeams are inserted in the respective sleeves 11, the upper end parts of the connecting screws on the crossbeams are not contacted with the inner walls of the sleeves 11, and the lower end parts of the connecting screws are positioned in the slots 101, so that the end parts of the connecting screws are prevented from damaging the inner walls of the sleeves 11, and the crossbeams are ensured to smoothly slide in the sleeves 11; the inner diameter of the sleeve 11 is larger than the outer diameter of the cross beam, the connecting screw is inserted on the cross beam unit, the lower end of the connecting screw is positioned in the groove, and the outer wall of the lower end of the cross beam unit is in contact with the inner wall of the lower part of the sleeve, so that the sleeve can provide a certain supporting force for the cross beam in the moving process of the cross beam.
The gear assembly 5 comprises an i-shaped frame 51, a gear 52 and a handle 53; two ends of the upper part of the I-shaped frame 51 are fixedly connected with two sides of the concrete guardrail 3 respectively, two ends of the lower part of the I-shaped frame 51 are rotatably provided with gears 52 through bearings respectively, the two gears 52 are meshed with racks 401 on respective sawtooth cross beams 41, the gears 52 are not interfered with the smooth surface cross beam 42 adjacent to the upper part, and two sides of the gears 52 are limited through nuts; a handle 53 is fixed on the end face of each gear 52, and the handle 53 is held by hand and the gears 52 are rotated, so that the gears 52 drive the respective saw-tooth cross beams 41 to slide, and further the cross beams are pulled out or pushed into the sleeve 11 of the upright post 1.
The support frame 6 is composed of a guide rail plate 61 and a plurality of U-shaped pieces 62, two end lugs of the U-shaped pieces 62 are fixedly connected with the concrete guardrail 3, and the openings of the U-shaped pieces 62 are upward; the guide rail plate 61 is arranged in the middle of all the U-shaped members 62, and a sliding chute (not shown in the figure) is arranged on the guide rail plate 61 and is used as a sliding rail of the universal wheel 45; in the process that the beam group 4 is pulled away from the upright post 1, the universal wheels 45 slide along the guide rail plates 61, and meanwhile, one end, far away from the opening of the central separation belt, of the beam group 4 can be prevented from being suspended, so that each beam is kept horizontal, and the beam group 4 is ensured to be smoothly pulled.
The section of the upright post 1 in the width direction is I-shaped, and compared with a common cylindrical upright post, the protective capability is stronger.
The installation scope of stand 1 is greater than the central separation strip opening length that stipulates in the standard specification, and the stand 1 of central separation strip opening both ends distributes densely (as shown in fig. 9), and the stand 1 of central separation strip opening intermediate position distributes sparsely, and the regional stand 1 that concrete guardrail that is exactly in movable guardrail and both ends passes through distributes densely, increases movable guardrail's fastness, prevents that the collision from destroying movable guardrail.
Sawtooth crossbeam and plain noodles crossbeam all adopt circular steel pipe to make, can absorb more energy in the vehicle collision, make this application have stronger protective capacities.
The working principle and the working process of the invention are as follows:
inserting each upright post 1 into each embedded sleeve 2, wherein a cross beam group 4 is positioned in a central green belt at an initial position, and one end, far away from a pulley assembly, of each cross beam group is inserted into sleeves 11 of 1-2 upright posts 1 adjacent to a concrete guardrail 3; holding the handle 53 by hand and rotating the gear 52, so that the gear 52 drives the respective sawtooth cross beam 41 to slide, the universal wheel 45 slides on the guide rail plate of the support frame 6, so that each cross beam sequentially passes through the sleeve 11 of each upright post 1, and finally, inserting one end of the cross beam, which is far away from the pulley assembly, into the sleeve 11 of the upright post 1 positioned in the middle of the opening of the central separation belt, and fixing the cross beam by screws so as to finish the installation of the whole movable guardrail;
the disassembly of the guardrail can be realized by the reverse operation of the installation process of the movable guardrail, each cross beam is moved to the central green belt, all the upright columns 1 within the length range of the opening of the central separation belt specified in the standard specification are only required to be pulled out at the moment, namely 1-2 upright columns 1 close to the concrete guardrail 3 are not required to be pulled out, and each cross beam is supported.
Nothing in this specification is said to apply to the prior art.
Claims (6)
1. A pull type movable guardrail for a central separation belt of a highway is characterized by comprising a gear assembly, a support frame, two cross beam groups and a plurality of upright posts;
a plurality of stand columns are arranged at the opening of the central separation belt at intervals, and the lower end of each stand column is inserted into a respective embedded sleeve; the two beam groups are symmetrically distributed at two ends of the upright post at the middle position of the opening of the central separation belt, one end of each beam group is inserted on the corresponding upright post, and the other end of each beam group extends to the central green belt, so that the two beam groups and all the upright posts form a guardrail structure together;
and the concrete guardrails at the two ends of the opening of the central separation belt are respectively provided with a gear assembly and a support frame, each gear assembly provides power for the sliding of the corresponding beam group, and the support frame provides support for the sliding of the beam group.
2. The pull type highway central divider movable guardrail of claim 1 wherein the beam set comprises a pulley assembly, at least one serrated beam layer and at least one smooth beam layer; each sawtooth cross beam layer comprises two sawtooth cross beams which are arranged side by side, each sawtooth cross beam is formed by sequentially connecting a plurality of sawtooth cross beam units, and a rack is arranged on the outer wall of each sawtooth cross beam unit along the axial direction; each smooth surface beam layer comprises two parallel smooth surface beams, and each smooth surface beam is formed by sequentially connecting a plurality of smooth surface beam units; two crossbeams of each crossbeam layer are respectively positioned at two sides of the upright post; the sawtooth cross beam and the smooth cross beam on the same side of the upright post are fixedly connected with one end of the concrete guardrail through long screws to form a whole;
a pulley assembly is arranged at one end of each beam layer positioned at the lower part of the upright post, which is close to the central green belt; the pulley component comprises a U-shaped connecting plate, a threaded pipe and a universal wheel; two ends of the U-shaped connecting plate are fixedly connected with the two cross beams; the screwed pipe is vertically fixed in the bottom of U type connecting plate, and the link of universal wheel and the lower extreme threaded connection of screwed pipe.
3. The movable guardrail of a pull-out highway central divider according to claim 1, wherein the upright post is provided with a plurality of sleeve layers along the height direction, each sleeve layer comprises two sleeves which are arranged side by side, the two sleeves are respectively arranged at two sides of the upright post, and the lower part of each sleeve is provided with a slot for the passing of the lower end part of a connecting screw.
4. The pull type highway central divider movable guardrail of claim 1 wherein the gear assembly comprises an I-shaped frame, a gear and a handle; two ends of the upper part of the I-shaped frame are fixedly connected with two sides of the concrete guardrail respectively, two ends of the lower part of the I-shaped frame are rotatably provided with gears respectively, and the two gears are meshed with racks on respective sawtooth cross beams; a handle is fixed on the end surface of each gear.
5. The movable guardrail of a pull-type highway central separation zone as claimed in claim 1, wherein the support frame is composed of a guide rail plate and a plurality of U-shaped pieces, two end lugs of the plurality of U-shaped pieces are fixedly connected with the concrete guardrail, and openings of the U-shaped pieces are upward; the guide rail plate is arranged in the middle of all the U-shaped parts, and a sliding groove is arranged on the guide rail plate.
6. The movable guardrail of a drawing type highway central separator according to claim 1, wherein the installation range of the upright posts is larger than the length of the opening of the central separator specified in the standard specification, the upright posts at two ends of the opening of the central separator are densely distributed, and the upright posts at the middle position of the opening of the central separator are sparsely distributed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011068597.5A CN112095521A (en) | 2020-10-09 | 2020-10-09 | Drawing type movable guardrail for central separation belt of highway |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011068597.5A CN112095521A (en) | 2020-10-09 | 2020-10-09 | Drawing type movable guardrail for central separation belt of highway |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112095521A true CN112095521A (en) | 2020-12-18 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011068597.5A Pending CN112095521A (en) | 2020-10-09 | 2020-10-09 | Drawing type movable guardrail for central separation belt of highway |
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| Country | Link |
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| CN (1) | CN112095521A (en) |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH06235271A (en) * | 1993-02-10 | 1994-08-23 | Nippon Samikon Kk | Concrete guard fence installing method and device thereof |
| KR20110004558U (en) * | 2009-10-30 | 2011-05-09 | (주)성우산업 | Emergency gate for median strip |
| CN203096655U (en) * | 2013-01-24 | 2013-07-31 | 黄飞 | Novel mobile combination type separator opening movable rail |
| CN203923962U (en) * | 2014-06-18 | 2014-11-05 | 孔凡富 | Speedway stress tube anti-collision movable guardrail |
| CN209722729U (en) * | 2019-03-03 | 2019-12-03 | 北京华路安交通科技有限公司 | A kind of bridge expanssion joint position post and beam fashioned iron guard bar structure |
| CN211113341U (en) * | 2019-03-04 | 2020-07-28 | 陕西锦瑞能源开发有限公司 | Town road isolated column telescoping device |
| CN211472327U (en) * | 2019-12-24 | 2020-09-11 | 北京市高速公路交通工程有限公司 | Assembled movable guardrail for central separation belt of highway |
| CN213508202U (en) * | 2020-10-09 | 2021-06-22 | 河北工业大学 | Drawing type movable guardrail for central separation belt of highway |
-
2020
- 2020-10-09 CN CN202011068597.5A patent/CN112095521A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH06235271A (en) * | 1993-02-10 | 1994-08-23 | Nippon Samikon Kk | Concrete guard fence installing method and device thereof |
| KR20110004558U (en) * | 2009-10-30 | 2011-05-09 | (주)성우산업 | Emergency gate for median strip |
| CN203096655U (en) * | 2013-01-24 | 2013-07-31 | 黄飞 | Novel mobile combination type separator opening movable rail |
| CN203923962U (en) * | 2014-06-18 | 2014-11-05 | 孔凡富 | Speedway stress tube anti-collision movable guardrail |
| CN209722729U (en) * | 2019-03-03 | 2019-12-03 | 北京华路安交通科技有限公司 | A kind of bridge expanssion joint position post and beam fashioned iron guard bar structure |
| CN211113341U (en) * | 2019-03-04 | 2020-07-28 | 陕西锦瑞能源开发有限公司 | Town road isolated column telescoping device |
| CN211472327U (en) * | 2019-12-24 | 2020-09-11 | 北京市高速公路交通工程有限公司 | Assembled movable guardrail for central separation belt of highway |
| CN213508202U (en) * | 2020-10-09 | 2021-06-22 | 河北工业大学 | Drawing type movable guardrail for central separation belt of highway |
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Inventor after: Cui Hongjun Inventor after: Guo Peilun Inventor after: Li Xia Inventor after: Zhu Minqing Inventor after: Chi Er Yong Inventor before: Cui Hongjun Inventor before: Guo Peilun Inventor before: Li Xia Inventor before: Zhu Minqing |
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